Event-driven Serverless Architecture with DynamoDB
summary
Claims that Amazon DynamoDB + AWS Lambda form event-driven stacks with DynamoDB Streams as transactional log, durable and ordered across two data centers. Demonstrates a one-to-one mapping: table partitions → stream shards consumed via Kinesis client library, with checkpointing choices explained and tradeoffs quantified (replay vs cost). Shows working builds: cross‑region replication, point‑in‑time restores, delayed replicas, and a rental‑property geospatial search using DynamoDB + Lambda to populate ElastiCache for low‑latency reads.
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chapters (11)
- 0:00Event-driven DynamoDB intro
- 1:06What is DynamoDB
- 2:32Logs in distributed systems
- 8:50Checkpointing and ordered logs
- 18:00DynamoDB event trends
- 23:00Cross-region replication challenges
- 29:47DynamoDB Streams correctness
- 33:23Optimistic concurrency control
- 37:17Scaling DynamoDB tables
- 39:02Rental property search use case
- 44:21Key takeaways
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